Learn how to remove viruses or malware from your Windows PC. Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being …

If you think that your Microsoft account has been hacked, we recommend that you reset your password right away. It's a good idea to choose a password that you don't use elsewhere. To …

Microsoft security help and learning. If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Keeping your computer secure helps you avoid malware and direct hacking attempts designed to steal your personal information. Here are some ways you can help reduce your online risk …

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Get started with Microsoft Defender identity theft monitoring. Criminals are constantly trying to trick you into revealing your personal information. Learn to spot scams. Attackers will send you …

Phishing (pronounced: fishing) is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or …

Using remote access, these experienced scammers can misrepresent normal system messages as signs of problems. Scammers might also initiate contact by displaying fake error messages …

Use an anti-malware app - Installing an anti-malware app and keeping it up to date can help defend your PC against viruses and other malware (malicious software). Microsoft Defender is …

Learn what to do if your username and password have stopped working. If you sign in to your account while traveling or if you install a new app that signs in with your account, you may get …

Outlook verifies that the sender is who they say they are and marks malicious messages as junk email. If the message is suspicious but isn't deemed malicious, the sender will be marked as …